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Offlinespock1
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calculating cfm from fan/tube *DELETED*
    #7465182 - 09/28/07 06:14 PM (16 years, 4 months ago)

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Invisibleem_bre_O
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Re: calculating cfm from fan/tube [Re: spock1]
    #7466309 - 09/29/07 02:51 AM (16 years, 4 months ago)

I've heard that ninja's are actually the mean part of hippies


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OfflineRogerRabbitM
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Re: calculating cfm from fan/tube [Re: em_bre_O]
    #7467028 - 09/29/07 11:22 AM (16 years, 4 months ago)

Quote:

can I calculate the cfm (and then the air exchanges for the tub it's blowing into) from the angle of a flame in front of it?




No, but you could stick the hose into a plastic bag of a known size, and time how long it takes to inflate the bag. However, fans aren't necessary for small grow operations. Simply cut windows in the greenhouse, or drill holes in the terrarium, and the room's natural circulation will provide the air exchange.
RR


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